ESS 3 Lecture Notes - Lecture 18: Neural Tube Defect, Enterohepatic Circulation, Adrenal Gland
7 Mar 2018
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Document Summary
Readily absorbed through intestinal wall and travel to cells. We cannot store large amount because our kidneys filter out any that are unused or unneeded. Should be consumed daily or weekly to avoid deficiency. Easily destroyed or removed during food preparation. Can be destroyed or removed during food storage or preparation. Not stored in large amounts, low risk toxicity. Excess generally from supplements not food sources. B vitamin complex (each has a distinct structure and function) B vitamins function as coenzymes in chemical reactions that release energy from carbs, proteins, and fats. Alters the production of several neurotransmitters leading to mental disturbances. Alcohol decreases thiamin absorption, increases excretion in the urine, decreases storage in the liver, decreases conversion of thiamin into its coenzyme. Synthesis of glucose, fatty acids, cholesterol, and steroid hormones. Can also be synthesized from the amino acid tryptophan. Rda (>19 years old) men 16 mg, women 14 mg. Also known as folacin or folic acid.
